LTC3214EDD Ver la hoja de datos (PDF) - Linear Technology
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LTC3214EDD Datasheet PDF : 12 Pages
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LTC3214
ELECTRICAL CHARACTERISTI CS The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V, CIN = C1 = C2 = 2.2μF, CCPO = 4.7μF.
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
EN
High Level Input Voltage (VIH)
Low Level Input Voltage (VIL)
Input Current (IIH)
Input Current (IIL)
ISET
VISET
IISET
VEN = 3.6V
ISET = 50μA
l 1.4
V
l
0.4
V
l
14.4
20
μA
l –1
1
μA
l 1.18
1.21
1.24
V
l
184
μA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Based on long-term current density limitations. Assumes an
operating duty cycle of ≤ 10% under absolute maximum conditions for
durations less than 10 seconds. Max current for continuous operation is
300mA.
Note 3: The LTC3214E is guaranteed to meet performance specifications
from 0°C to 70°C. Specifications over the –40°C to 85°C ambient
operating temperature range are assured by design, characterization and
correlation with statistical process controls.
TYPICAL PERFORMANCE CHARACTERISTICS (TA = 25°C unless otherwise specified)
ILED Dropout Voltage vs
LED Current
0.12
0.10
0.08
0.06
0.04
0.02
0
0
100 200 300 400 500
LED CURRENT (mA)
3216 G01
ILED vs RSET
600
500
400
300
200
100
0
0 50 100 150 200 250 300 350 400
RSET (kΩ)
1573 G02
1x Mode Charge Pump Open-Loop
Output Resistance vs Temperature
1.0 ICPO = 100mA
0.9
VIN = 2.9V
0.8
VIN = 3.6V
0.7
VIN = 4.5V
0.6
0.5
0.4
–40
–15 10
35
60
85
TEMPERATURE (°C)
3216 G03
3214fb
3
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